1366 - Incorrect integer value: '' for column `mapshopatlogis`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '931ed9f85f19cc2789469c2abfd3f1f1', '44.206.248.122', '1710830226', '1710830226', '/shop_content.php/coID/3/content/Unsere-AGB')

[XT SQL Error]